Design Optimization of Fully Integrated, MEMS Electromagnetic Energy Harvesting Devices using Patterned Micro-magnet Arrays

Abstract

One of the key requirements for magnetic MEMS transducers is the CMOS compatible, rare-earth free batch fabrication of permanent magnets with large energy product. Micro-patterns of nano-structured, CoPtP permanent magnetic material with large coercivity are developed at room temperature using low cost, pulse reverse electro-deposition techniques. The demagnetization fields of the magnetic elements are minimized through optimized micro-patterned structures which enable the full integration of high performance fully integrated MEMS electromagnetic energy harvesting devices.